Paste-tube.



A. C. CRUMP.

PASTE TUBE APPLICATION FILED JUNE 21% 1917- Patented' May 14; 1918.

' ATTORNEYS WITNESSES ABMISTEAD C. CRUMP, OF NEW YORK, NZ'Y.

PASTE-TUBE.

Specification of Letters latent.

Patented Mayld, 1918.

Application flled June 28, 1917. Serial No. 176,996.

To all whom it may concern:

clear, and exact description.

This invention relates to containers of the flexible tube typeespecially adapted for containing paste, although it is not limited tothis use.

The object of the invention is to provide a. new flexible or colla siblecontainer, and also a new method of filling the same.

A more specific object of the invention is the provision of asingle-piece flexible container made of transparent celluloid inwhich-the material can be filled through the mouth instead of throughthe open bottom, as is commonl the case. To carry out this method the tue is closed at the bottom and the body of the tube is then collapsed,and while in this condition the paste or other material is forced inthrough the mouth under pressure, whereby the tube is distended, andsince.the wall of the tube is trans arent it is possible to ascertainwhet er or not the full charge is supplied. The tube being of celluloidthecontents cannot be aifected deleteriously, as is liable with ametal'tube.

For a more complete understanding of the invention reference is to behad to the following description and claims taken in connection with theaccompanying drawing which illustrates certain embodiments of theinvention and wherein similar characters of reference indicatecorresponding parts in all the views, in which Figure 1 is a side viewof a tube; 4

Fig. 2 is a view taken at right-angles to Fig. 1, with a portion insection;

Fig. 3 is a similar view showing the bottom closed in a different mannerfrom that in Fig. 2;

' for binding the closed bottom of the tube shown in Figs. 1 and 2- IFig. 9 is a sectional view on the line 99,

Fig. 2; and

ig. 10 is ,a detail sectional view of a mclgdified form of the closedbottom of the tu e.

Referring to the drawing, 1 designates the body of the tube, which ismade from tubular stock of celluloid which is transparent and pliable.The tube is formed at one end into a neck 2 and mouth 3, both of whichare yielding or collapsible, which fea ture enables the contents of thetube to be forced out to the last drop. The bottom of the tube may beclosed in any suitable man ner, as for instance, by cementing the twoopposite sides-of the tube together as at 4, Fig. 3, or twosemi-circular sealing members 5 and 6, as shown in Figs. 6 and 7,

may be employed. The member 5 has a longitudinal tongue 7 which isadapted to enter in a longitudinal groove 8 in the member 6. Thesemembers are made of celluloid, and the bottom edge of the tubular bodwhile the latter is in circular cross sectional shape, is cemented tothe members 5 and 6, and then the latter are flattened out so that thetwo members interlock. These members can be cemented together, andfurther security can be obtained by applying ametal or other clip 9which is constructed as clearly shown in Fi 8. The mouth of the tube canbe closed by suitable construction.-

In Fig. 10 is showna'modified method of closin the bottom of the tube.One-half of the tu e has a'groove 10 on its inner surface and the otherhalf has a tongue 11 which engages in the groove, and a metal or othercli 12 clamps the two halves of the tube tig tly together, said clipbeing of U-shaped cross section and having its opposite walls shaped tofit the outer surfaces of the walls of the tube, whereby the clip isprevented from becoming loose or pulling oif.

To fill the tube the latter is flattened so as to force out the air, andthen while in this condition the mouth of the tube is connected with anozzle, tube.or other supply device through which .material is forcedunder pressure into the tube. Since the wall of the tube is transparentit is easy to ascertain whether or not the roper supply of material isdelivered to t e tube. v

a stopper of any From the foregoing description taken in connection withthe accompanying drawing, the advantages of the construction and methodof operation will be readily understood by those skilled in the art towhich the invention appertains, and while I have described the principleof operation, together with the article which I now consider to be thebest embodiment thereof, I desire to have it understood that the articleshown is merely illustrative and that such changes may be made whendesired as fall within the scope of the appended claims.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A tube of the class described comprising a resilient tubular bodyhaving a contracted neck terminating in a mouth, said neck and mouthbeing resilient and adapted to return to their original shape afterbeing compressed.

2. A tube of the class described comprising a resilient tubular bodyhaving a contracted neck terminating in a month, said neck and mouthbeing resilient and adapted to return to their original shape afterbeing compressed, said neck, body and mouth being in one piece.

3. A tubeof the class described comprising a tubular body, clampingstrips having longitudinal tongue and groove interlocking means forclosing one end of the tube, and a clip engaging over the strips to holdthe same together.

4. A tube of the class described con1prising a tubular body, clampingstrips having longitudinal tongue and groove interlocking means forclosing one end of the tube, and a clip engaging over the strips to holdthe same together, said clip having inwardly extending flanges engagingthe said strips to retain the clip in place.

5. A tube of the class described including as a one-piece article abody, neck and mouth made of resilient, transparent material, the neckand mouth being compressible as Well as the body.

ARMISTEAD C. CRUMP.

